Domestic waste pool sewage discharge device and construction method thereof

Abstract

The present application provides a kind of domestic waste pool sewage discharge device, including installation ground leachate pool and garbage pool, the leachate pool and garbage pool are communicated by sewage pipe, the garbage pool includes the pool body of lower end closed, upper end opening, the top of the pool body is rotationally arranged with the closure cover for opening and closing opening;Garbage table, slidingly arranged in pool body along vertical direction, and is provided with a plurality of water leakage holes for making garbage sewage pass, the garbage table is equipped with lifting assembly penetrating in itself;Extrusion mechanism, including bidirectional screw and two extrusion plates being screw connected on the both sides of bidirectional screw and rotationally arranged in garbage table along its axial direction, the bidirectional screw is drivingly connected lifting assembly, garbage table is driven to move downward in pool body by linkage assembly, and simultaneously drive bidirectional screw to reverse rotation by lifting assembly, to drive two extrusion plates to move towards and extrude garbage, not only can improve garbage disposal efficiency, but also can significantly improve environmental health conditions.

Description

Technical Field

[0001] This invention relates to the field of sewage discharge technology for domestic waste pits, and in particular to a sewage discharge device for domestic waste pits and its construction method. Background Technology

[0002] Conventional wastewater treatment facilities typically discharge pollutants through side discharge. However, for wastewater treatment facilities with high-requirement hydrogen production processes, if a side discharge is installed, a reinforced concrete exterior wall must be constructed on one side of the discharge point. This not only increases construction costs but also fails to meet the airtightness requirements under negative pressure, potentially leading to the release of harmful substances and causing foul odors to leak out and pollute the surrounding environment. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a sewage discharge device for domestic waste pits and its construction method. This solves the technical problem that if a waste pit is set up at a side discharge point, a reinforced concrete outer wall needs to be installed on one side of the side discharge point, which not only increases construction costs but also fails to meet the airtight function under negative pressure, easily causing harmful substances to leak out, resulting in foul odors and polluting the surrounding environment.

[0004] A first aspect of the present invention provides a wastewater discharge device for a domestic waste disposal site, comprising:

[0005] A leachate tank and a waste tank are installed on the ground. The leachate tank and the waste tank are connected by a sewage pipe. The waste tank includes a tank body that is closed at the bottom and open at the top. A rotatable cover for opening and closing the opening is provided on the top of the tank body.

[0006] The garbage platform for holding garbage is slidably installed in the pool in a vertical direction and has several drainage holes for the sewage from the garbage to pass through. The garbage platform is equipped with a lifting component that runs through it.

[0007] The extrusion mechanism includes a bidirectional screw rotatably disposed on the waste platform along its axial direction and two extrusion plates threadedly connected to opposite sides of the bidirectional screw, wherein the bidirectional screw is driven to the lifting assembly;

[0008] The closing cover can be rotated to have an open state and a closed state;

[0009] When the closed cover is rotated to the open state, the closed cover drives the garbage platform to move upward in the pool through the linkage component, and at the same time drives the bidirectional screw to rotate through the lifting component, so as to drive the two squeezing plates to move in opposite directions.

[0010] When the closed cover is rotated to the closed state, the closed cover drives the garbage platform to move downward in the pool through the linkage component, and at the same time drives the bidirectional screw to rotate in the opposite direction through the lifting component, so as to drive the two extrusion plates to move towards each other to extrude the garbage, thereby compressing the volume of the garbage and squeezing out the water in the garbage.

[0011] Furthermore, the lifting assembly includes a vertically arranged toothed plate and a toothed disc rotatably disposed on the garbage platform and meshing with the toothed plate for transmission. One end of the toothed disc is coaxially connected to one end of the bidirectional screw. The garbage platform is provided with a guide sleeve. One end of the toothed plate is disposed on the pool body, and the other end passes through the garbage platform and the guide sleeve.

[0012] Furthermore, the waste platform is equipped with a limiting slider, and the toothed plate has a limiting groove corresponding to the limiting slider, and the limiting slider is slidably disposed in the limiting groove.

[0013] Furthermore, the linkage assembly includes a first gear, a second gear, a lead screw, and a reversing assembly; the first gear is rotatably mounted on the closed cover and is drively connected to the second gear; the garbage platform is vertically provided with a screw hole, the lead screw is rotatably connected to the bottom of the pool body and threadedly connected to the screw hole, and the reversing assembly is disposed in the pool body and connected to the second gear, so as to convert the rotation of the lead screw into the power for lifting and lowering the garbage platform.

[0014] Furthermore, the reversing assembly includes a worm gear and a worm. The worm is rotatably connected to the bottom of the pool body along its axial direction, and the axis of the worm is perpendicular to the axis of the lead screw. The worm gear is coaxially fixedly connected to the lead screw, and the worm gear meshes with the worm.

[0015] Furthermore, the first gear is connected to the third gear via a first toothed belt drive, the toothed roller of the third gear is coaxially fixedly connected to the fourth gear, the fourth gear is connected to the second gear via a second toothed belt drive, and the toothed roller of the third gear is rotatably mounted on the top of the pool body.

[0016] Furthermore, the closed cover is provided with a rotating shaft, one end of which is coaxially connected to the first gear, and the other end is connected to the output end of a drive motor, which is located at the top of the pool body.

[0017] Furthermore, the bottom of the pool body has an arc-shaped structure at the middle, and drainage ditches are provided on both sides of the pool body; a suction ditch is provided on one side of the bottom of the leachate pool, and the sewage pipe is connected to the drainage ditch and the suction ditch respectively.

[0018] Furthermore, the height of the end of the sewage pipe that connects to the sewage ditch is greater than the height that connects to the suction ditch.

[0019] A second aspect of the present invention provides a construction method for a sewage discharge device for a domestic waste disposal site, the construction method comprising the following steps:

[0020] Step 1: Excavate grooves on the ground to accommodate the leachate tank and the waste tank respectively;

[0021] Step 2: Then, embed the sewage pipe at the bottom of the groove and waterproof seal the perimeter of the sewage pipe.

[0022] Step 3: Then construct the base plates of the leachate tank and the garbage tank respectively. After that, install the leachate tank and the garbage tank in the groove and connect them to both ends of the sewage pipe.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The wastewater discharge device for domestic waste pits of the present invention has a simple structure and reasonable design. By opening and closing the closed cover, raising and lowering the waste platform and the action of the squeezing mechanism, the waste compression and wastewater discharge are automated, which can not only improve the waste treatment efficiency, but also significantly improve environmental sanitation conditions. Attached Figure Description

[0025] Figure 1 This is a schematic front view of a wastewater discharge device for a domestic waste pool according to an embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional structural schematic diagram of a sewage discharge device for a domestic waste pool according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the waste pool in a wastewater discharge device for domestic waste pools according to an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0029] Figure 5 for Figure 3 A magnified view of a portion of point B in the middle;

[0030] Figure 6 This is a schematic diagram of the reversing component in a sewage discharge device for a domestic waste pool according to an embodiment of the present invention;

[0031] Explanation of icon numbers:

[0032] 10. Leachate tank; 11. Suction ditch;

[0033] 20. Garbage pit; 21. Pit body; 22. Drainage ditch;

[0034] 30. Sewage pipe; 31. Filter media layer;

[0035] 40. Sealing cover; 41. Drive motor;

[0036] 50. Trash can; 51. Limiting slider;

[0037] 60. Lifting assembly; 61. Gear plate; 611. Limiting slide; 62. Gear disc; 63. Guide sleeve;

[0038] 70. Extrusion mechanism; 71. Double-ended screw; 72. Extrusion plate;

[0039] 80. Linkage assembly; 81. First gear; 82. Second gear; 83. Third gear; 84. Fourth gear; 85. First toothed belt; 86. Second toothed belt; 87. Lead screw;

[0040] 90. Reversing assembly; 91. Worm gear; 92. Worm.

[0041] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the technical solutions of this invention are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0043] In the description of this invention, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the implementation conditions of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0044] Example 1

[0045] like Figure 1-6As shown, an embodiment of the present invention provides a sewage discharge device for a domestic waste pit, including a leachate tank 10 and a waste pit 20 installed on the ground. The leachate tank 10 and the waste pit 20 are connected by a drain pipe 30. The waste pit 20 includes a tank body 21 that is closed at the bottom and open at the top. A sealing cover 40 for opening and closing the opening is rotatably provided on the top of the tank body 21. The leachate tank 10 is used to collect and treat the leachate discharged from the waste pit 20. A waste platform 50 for holding waste is slidably disposed vertically in the tank body 21 and has several drainage holes for wastewater to pass through, so that wastewater in the waste can flow into the bottom of the tank through these holes and be discharged into the leachate tank 10 through the drain pipe 30. The waste platform 50 is provided with a lifting assembly 60 that penetrates through itself. A squeezing mechanism 70 includes a component rotatably disposed on the waste platform 50 along its axial direction. A bidirectional screw 71 is threadedly connected to two extrusion plates 72 on opposite sides of the bidirectional screw 71. The bidirectional screw 71 is driven by the lifting assembly 60. The closing cover 40 rotates to have an open state and a closed state. When the closing cover 40 is rotated to the open state, the closing cover 40 drives the garbage platform 50 to move upward in the pool body 21 through the linkage assembly 80, and at the same time drives the bidirectional screw 71 to rotate through the lifting assembly 60, so as to drive the two extrusion plates 72 to move in opposite directions. When the closing cover 40 is rotated to the closed state, the closing cover 40 drives the garbage platform 50 to move downward in the pool body 21 through the linkage assembly 80, and at the same time drives the bidirectional screw 71 to rotate in the opposite direction through the lifting assembly 60, so as to drive the two extrusion plates 72 to move towards each other to squeeze the garbage, thereby compressing the volume of the garbage and squeezing out the water in the garbage.

[0046] In this embodiment of the invention, when the sealing cover 40 is in the closed state, the garbage platform 50 is located at the bottom of the pool body 21, and the two squeezing plates 72 are in opposite positions, compressing the garbage, reducing its volume, and squeezing out water. When the sealing cover 40 is rotated to the open state, the linkage component 80 drives the garbage platform 50 to move upward. At the same time, the lifting component 60 is activated, causing the bidirectional screw 71 to rotate clockwise, driving the two squeezing plates 72 to move in opposite directions, releasing the compressed garbage. During the upward movement of the garbage platform 50, water in the garbage continues to flow into the bottom of the pool through the drain hole and is discharged into the leachate pool 10 through the drain pipe 30. When the sealing cover 40 is rotated to the closed state, the linkage component 80 drives the garbage platform 50 to move downward. At the same time, the lifting component 60 is activated in the reverse direction, causing the bidirectional screw 71 to rotate counterclockwise, driving the two squeezing plates 72 to move in opposite directions, compressing the garbage again. During the compression process, the water in the garbage is further squeezed out, allowing it to flow into the bottom of the pool through the drainage hole and into the leachate pool 10 through the sewage pipe 30. This achieves solid-liquid separation of the garbage inside the pool 21, preventing the garbage from being soaked in liquid for a long time and generating a lot of odor.

[0047] Specifically, such as Figure 3-5 As shown, in this embodiment of the invention, the lifting assembly 60 includes a vertically arranged toothed plate 61 and a toothed disc 62 rotatably disposed on the garbage platform 50 and meshing with the toothed plate 61. One end of the toothed disc 62 is coaxially connected to one end of the bidirectional screw 71. The garbage platform 50 is provided with a guide sleeve 63. One end of the toothed plate 61 is disposed on the pool body 21, and the other end passes through the garbage platform 50 and the guide sleeve 63. Two guide sleeves 63 are provided and are respectively disposed at the upper and lower ends of the garbage platform 50 to limit the toothed plate 61. In order to make the up-and-down movement of the garbage platform 50 more stable, the lifting assembly 60 can be configured as two sets, which are respectively located on both sides of the garbage platform 50.

[0048] Specifically, the rotation of the bidirectional screw 71 is achieved through the meshing transmission of the toothed plate 61 and the toothed disc 62, which in turn controls the movement of the extrusion plate 72. That is, during the descent of the garbage platform 50, the toothed plate 61 moves downward relative to the toothed disc 62. Due to the meshing of the toothed plate 61 and the toothed disc 62, the toothed disc 62 will rotate counterclockwise, thereby driving the bidirectional screw 71 to rotate counterclockwise. The rotation of the bidirectional screw 71 drives the two extrusion plates 72 to move towards each other, compressing the garbage again and squeezing out the water in the garbage, so that it flows into the bottom of the pool through the drainage hole and is discharged into the leachate pool 10 through the sewage pipe 30.

[0049] Based on the above solutions, such as Figure 4 As shown, in this embodiment of the invention, the garbage platform 50 is provided with a limiting slider 51, and the toothed plate 61 is provided with a limiting groove 611 corresponding to the limiting slider 51. The limiting slider 51 is slidably disposed in the limiting groove 611 to improve the stability of the garbage platform 50 during the lifting process.

[0050] Specifically, such as Figure 3 As shown, in this embodiment of the invention, the linkage component 80 includes a first gear 81, a second gear 82, a lead screw 87, and a reversing component 90; the first gear 81 is rotatably disposed on the closed cover 40 and is drively connected to the second gear 82; the garbage platform 50 is vertically provided with a screw hole, the lead screw 87 is rotatably connected to the bottom of the pool body 21 and threadedly connected to the screw hole, and the reversing component 90 is disposed on the pool body 21 and connected to the second gear 82, so as to convert the rotation of the lead screw 87 into the power for the lifting and lowering of the garbage platform 50. The linkage between the rotation of the closed cover 40 and the lifting and lowering of the garbage platform 50 is realized through gear transmission, the lead screw 87, and the reversing component 90.

[0051] Specifically, when the closed cover 40 is rotated to the open state, the first gear 81 rotates accordingly, driving the second gear 82 to rotate. The second gear 82 transmits the rotation to the lead screw 87 through the reversing assembly 90. When the lead screw 87 rotates, the garbage platform 50 begins to move upward because it is threadedly connected to the screw hole on the garbage platform 50. When the closed cover 40 is rotated to the closed state, the first gear 81 rotates in the opposite direction, driving the second gear 82 to rotate in the opposite direction. The second gear 82 transmits the rotation to the lead screw 87 through the reversing assembly 90. When the lead screw 87 rotates in the opposite direction, the garbage platform 50 begins to move downward.

[0052] Specifically, such as Figure 6 As shown, in this embodiment of the invention, the reversing assembly 90 includes a worm gear 91 and a worm 92. The worm 92 is rotatably connected to the bottom of the pool body 21 along its axial direction, and the axis of the worm 92 is perpendicular to the axis of the lead screw 87. The worm gear 91 is coaxially fixedly connected to the lead screw 87, and the worm gear 91 meshes with the worm 92. The presence of the worm gear 91 and the worm 92 not only realizes the direction conversion of power transmission, but also has a self-locking function.

[0053] Specifically, when the cover 40 is rotated to the open state, the first gear 81 rotates accordingly, driving the second gear 82 to rotate. The second gear 82 transmits the rotation to the lead screw 87 through the reversing assembly 90. When the lead screw 87 rotates, the garbage platform 50 begins to move upward because it is threadedly connected to the screw hole on the garbage platform 50. When the cover 40 is rotated to the closed state, the first gear 81 rotates in the opposite direction, driving the second gear 82 to rotate in the opposite direction. The second gear 82 transmits the rotation to the worm wheel 91 through the worm 92. The reverse rotation of the worm 92 causes the worm wheel 91, which meshes with it, to rotate in the opposite direction, thereby driving the lead screw 87 to rotate in the opposite direction. When the lead screw 87 rotates in the opposite direction, the garbage platform 50 begins to move downward.

[0054] Specifically, such as Figure 3As shown, in this embodiment of the invention, the first gear 81 is driven by a third gear 83 via a first toothed belt 85. The toothed roller of the third gear 83 is coaxially and fixedly connected to a fourth gear 84. The fourth gear 84 is driven by a second toothed belt 86 to the second gear 82. The toothed roller of the third gear 83 is rotatably mounted on the top of the pool body 21. When the closed cover 40 is rotated to the open state, the first gear 81 rotates accordingly. The first gear 81 drives the third gear 83 to rotate via the first toothed belt 85. The toothed roller of the third gear 83 is coaxially and fixedly connected to the fourth gear 82. 4 also rotates accordingly. The fourth gear 84 drives the second gear 82 to rotate through the second toothed belt 86. The second gear 82 transmits the rotation to the worm gear 91 through the reversing assembly 90. When the closed cover 40 rotates to the closed state, the first gear 81 rotates in the opposite direction. The first gear 81 drives the third gear 83 to rotate in the opposite direction through the first toothed belt 85. The fourth gear 84, which is coaxially fixedly connected to the toothed roller of the third gear 83, also rotates in the opposite direction. The fourth gear 84 drives the second gear 82 to rotate in the opposite direction through the second toothed belt 86. The second gear 82 transmits the rotation to the worm gear 91 through the reversing assembly 90.

[0055] Specifically, such as Figure 6 As shown, in this embodiment of the invention, the closed cover 40 is provided with a rotating shaft. One end of the rotating shaft is coaxially connected to the first gear 81, and the other end is connected to the output end of the drive motor 41. The drive motor 41 is located on the top of the pool body 21. The drive motor 41 realizes the automatic opening and closing of the closed cover 40 without manual operation, thus improving the degree of automation.

[0056] Specifically, such as Figure 2 As shown, in this embodiment of the invention, the bottom of the pool body 21 has an arc-shaped structure at the middle. Drainage ditches 22 are provided on both sides of the pool body 21. The arc-shaped structure allows the sewage in the garbage to flow naturally into the drainage ditches 22 on both sides, and the drainage ditches 22 on both sides can quickly guide the sewage into the leachate tank 10, thereby improving the drainage efficiency. A suction ditch 11 is provided on one side of the bottom of the leachate tank 10, and the sewage pipe 30 is connected to the drainage ditch 22 and the suction ditch 11 respectively.

[0057] Specifically, such as Figure 2 As shown, in this embodiment of the invention, the height of the end of the sewage pipe 30 that connects to the sewage ditch 22 is greater than the height that connects to the suction ditch 11, so that the sewage from the garbage can flow smoothly from the garbage pit 20 into the leachate pit 10.

[0058] Example 2

[0059] like Figure 1-2As shown, an embodiment of the present invention provides a construction method for a sewage discharge device for a domestic waste pool, including the sewage discharge device for a domestic waste pool as described in Embodiment 1. The construction method includes the following steps:

[0060] Step 1: Excavate grooves on the ground to accommodate leachate tank 10 and waste tank 20 respectively;

[0061] Step 2: Then, pre-embed the sewage pipe 30 at the bottom of the groove and perform waterproof sealing treatment around the sewage pipe 30;

[0062] Specifically, high-quality sealing materials, such as rubber sealing rings and waterproof adhesives, should be used for waterproofing and sealing to ensure that there is no leakage at the joints. When constructing the outer concrete layer, the concrete mix ratio and pouring process should be strictly controlled to ensure the density and uniformity of the concrete layer, so that it can effectively protect the sewage pipe 30.

[0063] The diameter of the sewage pipe 30 needs to be determined based on factors such as the size and burial depth of the garbage pit 20, requiring a diameter ≥1000mm. This large diameter design effectively ensures smooth sewage discharge and avoids blockages. Furthermore, a comprehensive assessment should be conducted considering factors such as the expected sewage volume and discharge frequency from the garbage pit 20. For example, if the garbage pit 20 is large and the garbage has a high water content, resulting in a large volume of sewage, then the pipe diameter needs to be appropriately increased to ensure timely and smooth sewage discharge. Waterproof sealing treatment should also be applied to the perimeter of the sewage pipe 30.

[0064] Step 3: Then, construct the base plates of leachate tank 10 and garbage tank 20 respectively. Then, install leachate tank 10 and garbage tank 20 in the groove and connect them to both ends of the sewage pipe 30. After the galvanized sewage pipe 30 is constructed, apply an anti-corrosion and waterproof layer to the inside of the pipe wall, which is made in the same way as the walls of garbage tank 20 and leachate tank 10. The anti-corrosion and waterproof layer can effectively resist the erosion of sewage pipe 30 by various corrosive substances in the sewage of garbage tank 20 and extend the service life of sewage pipe 30.

[0065] Specifically, when applying the anti-corrosion and waterproof layer to the inner side of the pipe wall, it is essential to ensure that the coating thickness is uniform and meets design requirements. Multiple layers can be applied, with each layer allowed to dry and cure before applying the next. For special maintenance of the anti-corrosion and waterproof layer, in addition to regularly checking the coating integrity, monitoring of the sewage pipe 30 should be strengthened during the initial use of the waste pit 20. This includes regularly checking the pressure, flow rate, and for any signs of leakage within the sewage pipe 30. If minor damage to the coating is found, it can be repaired promptly using the same materials and processes as the original coating. This ensures that the sewage pipe 30 remains in good protective condition, guaranteeing that wastewater from the domestic waste pit 20 can be discharged into the leachate tank 10 in a long-term, stable, and safe manner. This maintains the normal operation of the entire waste treatment system, reduces potential environmental pollution risks, and also lowers maintenance costs and operational interruption risks due to sewage pipe 30 malfunctions, thereby improving the overall reliability and sustainability of the waste treatment facility.

[0066] During the pouring of the raft foundation for the leachate tank 10, it is crucial to ensure that the sewage pipe 30 is accurately anchored into the raft foundation and securely fixed. For anti-buoyancy reinforcement, methods such as anti-buoyancy anchors and anti-buoyancy piles can be employed, with appropriate anti-buoyancy measures selected based on the geological conditions and groundwater level of the leachate tank 10. Anti-buoyancy anchors connect the sewage pipe 30 to stable strata, resisting groundwater buoyancy through the friction and anchoring force of the anchors; anti-buoyancy piles balance buoyancy through the bearing capacity of the pile body. When temporarily sealing the sewage pipe 30, specialized sealing materials such as foam plugs or rubber plugs can be used, and the materials should be clearly marked for easy removal after subsequent construction.

[0067] During the construction of the bottom slab of the garbage pit 20, the laying and fixing of the sewage pipe 30 must be strictly carried out in accordance with the design requirements. To prevent disturbance to the sewage pipe 30, warning signs can be set up at the construction site to restrict the movement of construction machinery and personnel near the sewage pipe 30. When using angle steel to temporarily fix the sewage pipe 30, the specifications and quantity of the angle steel should be reasonably selected according to the diameter and length of the sewage pipe 30 to ensure that the angle steel can provide sufficient support. For example, for sewage pipes 30 with larger diameters, thicker and larger-sized angle steel can be selected and fixed at multiple points on the sewage pipe 30, such as setting up an angle steel fixing bracket at regular intervals.

[0068] In this embodiment of the invention, the lower part of the sewage pipe 30 is also filled with a filter media layer 31. By setting the filter media layer 31, it plays a role in air and pressure isolation, so that the air pressure on one side of the garbage pit 20 is not affected by the leachate tank 10. This prevents harmful gases in the leachate tank 10 and pressure fluctuations caused by liquid level differences from being transmitted to the garbage pit 20, thereby maintaining the relative stability of the air pressure in the garbage pit 20 and avoiding abnormal flow or splashing of garbage and sewage in the garbage pit 20 due to air pressure changes. Secondly, the filter media layer 31 can also perform preliminary filtration of the discharged sewage. Its function is to intercept larger particulate impurities in wastewater, preventing them from entering the leachate tank 10 and adversely affecting subsequent treatment processes, such as clogging the drainage pipes of the leachate tank 10 or affecting the normal operation of the leachate treatment equipment. The selection of the filter media layer 31 needs to comprehensively consider factors such as its filtration effect, air permeability, and durability. Materials such as gravel and activated carbon can be selected. Gravel can provide good support and filtration pores, while activated carbon has advantages in adsorbing odors and some organic pollutants. The combination of the two can achieve better results.

[0069] In this embodiment of the invention, the sewage pipe 30 is made of galvanized steel, which has good corrosion resistance and strength and can adapt to the harsh environment of sewage discharge from the garbage pit 20.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to block it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sewage discharge device for a domestic waste pool, characterized in that, include: The leachate tank (10) and the garbage tank (20) are installed on the ground. The leachate tank (10) and the garbage tank (20) are connected by a sewage pipe (30). The garbage tank (20) includes a tank body (21) that is closed at the bottom and open at the top. The top of the tank body (21) is rotatably provided with a sealing cover (40) for opening and closing the opening. The garbage platform (50) for holding garbage is slidably installed in the pool (21) in the vertical direction and has several drainage holes for the sewage of garbage to pass through. The garbage platform (50) is provided with a lifting component (60) that runs through itself. The extrusion mechanism (70) includes a bidirectional screw (71) rotatably disposed on the garbage platform (50) along its axial direction and two extrusion plates (72) threadedly connected to opposite sides of the bidirectional screw (71). The bidirectional screw (71) is drively connected to the lifting assembly (60). The closing cover (40) is rotated to have an open state and a closed state; When the closed cover (40) is rotated to the open state, the closed cover (40) drives the garbage platform (50) to move upward in the pool (21) through the linkage component (80), and at the same time drives the bidirectional screw (71) to rotate through the lifting component (60) to drive the two squeezing plates (72) to move in opposite directions. When the closed cover (40) is rotated to the closed state, the closed cover (40) drives the garbage platform (50) to move downward in the pool (21) through the linkage component (80), and at the same time drives the bidirectional screw (71) to rotate in the opposite direction through the lifting component (60) to drive the two extrusion plates (72) to move towards each other to extrude garbage, so as to compress the volume of garbage and squeeze out the water in the garbage.

2. The sewage discharge device for a domestic waste pool according to claim 1, characterized in that, The lifting assembly (60) includes a vertically arranged toothed plate (61) and a toothed disc (62) rotatably disposed on the garbage platform (50) and meshing with the toothed plate (61). One end of the toothed disc (62) is coaxially connected to one end of the bidirectional screw (71). The garbage platform (50) is provided with a guide sleeve (63). One end of the toothed plate (61) is disposed on the pool body (21), and the other end passes through the garbage platform (50) and the guide sleeve (63).

3. The sewage discharge device for a domestic waste pool according to claim 2, characterized in that, The garbage bin (50) is provided with a limiting slider (51), and the toothed plate (61) is provided with a limiting groove (611) corresponding to the limiting slider (51). The limiting slider (51) is slidably disposed in the limiting groove (611).

4. The sewage discharge device for a domestic waste pool according to claim 1, characterized in that, The linkage component (80) includes a first gear (81), a second gear (82), a lead screw (87), and a reversing component (90); the first gear (81) is rotatably disposed on the closed cover (40) and is connected to the second gear (82); the garbage platform (50) is vertically provided with a screw hole, the lead screw (87) is rotatably connected to the bottom of the pool body (21) and threadedly connected to the screw hole, and the reversing component (90) is disposed on the pool body (21) and connected to the second gear (82) to convert the rotation of the lead screw (87) into the power for the lifting and lowering of the garbage platform (50).

5. A sewage discharge device for a domestic waste pool according to claim 4, characterized in that, The reversing assembly (90) includes a worm gear (91) and a worm (92). The worm (92) is rotatably connected to the bottom of the pool body (21) along its axial direction, and the axis of the worm (92) is perpendicular to the axis of the lead screw (87). The worm gear (91) is coaxially fixedly connected to the lead screw (87), and the worm gear (91) meshes with the worm (92).

6. A sewage discharge device for a domestic waste pool according to claim 4, characterized in that, The first gear (81) is connected to the third gear (83) via the first toothed belt (85). The toothed roller of the third gear (83) is coaxially fixedly connected to the fourth gear (84). The fourth gear (84) is connected to the second gear (82) via the second toothed belt (86). The toothed roller of the third gear (83) is rotatably disposed on the top of the pool body (21).

7. A sewage discharge device for a domestic waste pool according to claim 4, characterized in that, The closed cover (40) is provided with a rotating shaft. One end of the rotating shaft is coaxially connected to the first gear (81), and the other end is connected to the output end of the drive motor (41). The drive motor (41) is located on the top of the pool body (21).

8. A sewage discharge device for a domestic waste pool according to claim 1, characterized in that, The bottom of the pool (21) is arc-shaped, and drainage ditches (22) are provided on both sides of the pool (21); a suction ditch (11) is provided on one side of the bottom of the leachate pool (10), and the sewage pipe (30) is connected to the drainage ditch (22) and the suction ditch (11) respectively.

9. A sewage discharge device for a domestic waste pool according to claim 8, characterized in that, The height of the end of the sewage pipe (30) that connects to the sewage ditch (22) is greater than the height that connects to the suction ditch (11).

10. A construction method for a sewage discharge device for a domestic waste collection site, comprising the sewage discharge device for a domestic waste collection site as described in any one of claims 1-9, characterized in that, The construction method includes the following steps: Step 1: Excavate grooves on the ground to accommodate the leachate tank (10) and the garbage tank (20); Step 2: Then, the sewage pipe (30) is pre-embedded at the bottom of the groove, and the sewage pipe (30) is waterproofed and sealed around its perimeter. Step 3: Then construct the base plates of the leachate tank (10) and the garbage tank (20) respectively. Then install the leachate tank (10) and the garbage tank (20) in the groove and connect them to the two ends of the sewage pipe (30).

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